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Full Discussion: [awk] Math & Bold-Font?
Top Forums Shell Programming and Scripting [awk] Math & Bold-Font? Post 302935472 by sea on Monday 16th of February 2015 11:50:49 PM
Old 02-17-2015
Thank you RudiC for the updated code, sadly, one cant double thank in such situations.

So what i have now is this, with these questions:
Code:
	ln10=log(10)	# What is this for?
	#print ln10	## 2.30259

Really, i can make no sense of it, maybe i'm too focused on the number?

Code:
	# Again what for is ln10 used here and XP prepared for? And what is done anwyay?
	XP=int(log(NBR)/ln10/3)
	# print XP # = 1 or 0

Well i understand the 'order' of the math i guess, make a LOG-number from the passed NBR, and then do-something with 2.30259/3 and finaly make that an int-number.
Is that about right?
Guess the best to describe my question: i cant figure out the formula beeing used (actualy its naturaly spoken 'syntax').

Code:
	# sprintf is one topic, but what is why done with XP (1 or 0)?
	return sprintf ("%.2f%s", NBR / 10^(3*XP), U[1+XP])

Its passed NBR divided by 10 square 3 times either 0 or 1, and selecting its output string according to passed array U. (? 1+XP == XP+1 ?)
Is XP here used like 'shift' with 'getopts' (or just similar tasks)?

Code:
	# How can i check for the current line its [BP]UNT value?
	if("B" == U) { 		# This still prints output, but doesnt do the changes wanted
	## if("B" == BUNT) {	# This way it prints absolute nothing ??
		split(bitrate,B,".")
		bitrate=B[1]
	}

I've also tried if("B" in BUNT) without luck either Smilie
This last one is an attempt to remove the .00 of the bitrate colum for the values not exceeding the Byte range.

Thank you in advance for clearing up.
Have a good day!
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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